The answer is true they should have both
Answer:
Not able to see anything so please click it clearly.
Answer is a. neolithic where they use wild and domesticated crops and domesticated animals
Answer: A. True.
Explanation: A substance or material is hazardous if can be dangerous to a susceptible agent. This susceptible agent can be a human being, an animal, a plant, a fungi or any other living form, or an environment agents like water, soils, air etc. that can be contaminated with it and later could be dangerous for a living forms.
